1. Letter A Flashcards
abrasion
Erosion caused by rocks and other material rubbing away the river bed. Also called corrosion
Absolute data
In population terms, absolutes data is the actual number of people in that particular region, country, age band or gender
Absolute poverty
The type of poverty where a person’s basic needs like water, food and shelter cannot be met
Access to water
The percentage of the population that has access to safely managed water
Active
A volcano which has either recently erupted or has an active magma chamber
Adaptations
The way in which a plant or animal is adapted to help it survive in a particular ecosystem
Adult literacy
Adult literacy rate it the percentage of people ages 15 and above who can both read and write
It is measured by testing a person’s understanding of a short simple statement about their everyday lives
Adventure tourism
Tourism to access extreme areas or to complete challenging activities
Aeroponics
Plants suspended in the air with the roots sprayed with a mix of water and nutrients
Afforestation
The planting of trees to create a forest where there was no previous tree cover
Age/sex pyramid
A type of bar chart that shows the breakdown of populations of countries or regions based upon sex and age
Also known as a population pyramid
Agglomeration
A collection or mass of things
In industry, similar businesses tend to group together in the same location
Agricultural revolution
The dramatic increase in production of crops and livestock from 1650 onwards caused by factors such as creating fields, improved ploughing, crop rotation and new crops
Agriculture
The growing of crops and raising of animals to provide food
Alluvium
Material deposited during periods of flooding
Contains large quantities of minerals so creates fertile soil